Core-making machine



De. 17, 1929. R. s. clcERo CORE MAKING MAcg-NE Filed May 17, 192,8 4 Sheets-Sheet Dec. 17, 1929.

4 Sheets-Sheet 2'- 675,0 era Dec.17,1929 RUSGICERO 1,739,663

CORE MAKING MACHINE Filed May 17,1928 4 Sheets-Sheet 5 ric er@ Dec. 17, 1929. R. s. clc'r-QQ 1,739,663

' vcomi: MAKING 'MACHINE A Filed May 17, 192e 4"Sneetssneez 4 l I 'l l 'rfll' gmnntoz l'aerq i- 5%? M* I abfomq S Patented Dec. 17, 1929 AUlalrrli STATES RALBH s. 4Crea-mo,Y ori WATEBBURY, coNNEcrIcUT conrmnxrne amen-Inn;

i Application led May ,1'71' This invention relates toa core making ma?V Lchine and it consists in the novel l features hereinafter'described and Claimed. l

An ole-ject of tlieinvention is to provide in 5 a machine of the character stated `a series of molds carried lby a plate and adapted to rotate intermittently around an axis, therebe- 'ing means forfturning theplate by stages and means for holding the plate temporarily i ai? fixed position.

A furtherobgeetA of the invention to profvide means-*for supplying sand to the molds' successively, means vfor tamping KAor ompaet ingtlie sandin ther molds7 meansfor marking tlie articles which areo'rmedin the molds, means' Vfor tapping the molds- 'toy loosen l the articles tliereiinmeans for ej eating kthe articles from the molds and ymeans* lfor cleaning the moldsv` after *the articles have beer-,1 ejected 2Q therefrom., -.j ;f jj Vitli these objectsin View, the machine ineludes a table upon which a plate is mounted for rotation by stages or at intervalsythe said; plate being provided at its peripheral hoppers is mounted'abovetheplate and iS adapted to supply the sand to thel molds. A spring-pressed pin is; mounted upon the-'tabley an d engages-the edge of thel .plate and;v is

'atthose vintervals.` of time vduring which the moldsl are receiving the sand.A A bridge'mem-r ber is mounlted for.: vertical reicprocatory; l y* j periphery ot the pla-te Tle platee. is prof,v

vided at 'itsedge with a serieso findentationsl movement'above the `plate andv carries tam. "j pers adapted to enter thejmoldsafter the sand 'been suppliedv thereto andV` which serves as means vfor compacting or *pressing thesand in themolds t@ form the Cores-. A

49'* marker-is ear-riedby the bridge andji'sl adapt-y Strikev the plate :to loosen the cores in the bridge member. and is adapted to remove lthe:

portion With a series Vof molds, A'paiifilof adapted' toy hold the sameat a yfixed position l ed topierce or mark the cores. A tapper is' mounted upon Vthe table and' is adapted to molds, An ejectin@- means is carried by the completed cores Jtrom themoldsjand a brush may'. rserial No. lzlvztftlt.

A Figure .l is a.

machine. y Figure 2 is a side .elevational viewl thereotlr Figure 3 a fragmentary transverse/sec'- tional View tlieneofcut on the line of 55 Figurel. fw. j y

'Figure 4l is a transverse sectional VViewv through, oneof the sandhoppers of the ma:V chain out onv the line L4/,of Figure/1. i

Figure 5 is a fragmentary sebtollal View` 60 through the tapping mechanism of the nia?- chine, enten the'. lille. 5&5 of Figurel..

Figure 6I is a'` transverse vsectional view of the means. for holding the, plate, peut onftlle lined- 6 of' Figure 65 Figure 7 is. a sideelevational vieW"V ofthe l means for raising and*v lowering the bridge member, Showing the 'rafts in Setiomqand top, plan,vieneA offtlie enten lline'ff? ofFigureL 4 The @Ore Iria'lgi-ngmaehne compry esY a tableA 70vv i having a top 2 prorifdedwith, anoutl'etOpen.n Y ing 'Anjunloadin'gtnayfl-iscarried by the table and is disposedlbelow the.open'ingr Bof the table t0p" 4 l Y A platev 5. is journalled forrotatilonabove 75 the top 2 and is provided ati'ts peripheral.

p "c'irtio'nV with a series `of molds 5.' A pin? is slidably mofufntedfY a standard 8 f Carried by the table l and a spring `'9 is housed .inthe standard andi bears at one end against the: 8o

portion of the standsrrdY and at vrits opposite; end. npon the andserves to hold theend Vportion o f'the'plfnl m engagement with the A 10 into-Which the endf ofthe' pin may be engaged, thus Vhplding tlieJplate-stat-Q'ilary at intervals, yThe plate/,5 is Ainoliiled Shaft 11Y which is. `jouwaus'@liepen nieuwe lshfaftl Y The teethto and a gear .WlieeljlQ l'searried byr'tlie said 90 f the gember-12 nieshwith amat Oragear al1-@e113 j omnalled tupon the table.- and 'a starwheeljor Geneva'gwheelrl j Wheel l5 is journalled upon 'the table'and is. provided at its sideswtheastud 16 VW/hielifis adapted to,lengage"in; grooves 117, provided; upon thestar Wheel lilasl the `Wheel klis rotetti. Thus, means @epmidea fattening f 100 the sta-r Wheel at intervalsand through the 5`is turned at intervals or by stages.

intermeshing gear Wheels 13 and'12, the plate A gear Wheel 18-is journaled upon'the table and its teeth mesh with the teeth' of the gear Wheel 15.

vA Worm wvheel 19-is fixed tothe side of the gear wheel 18 and its teeth mesh with a Wormr 20 mounted upon a shaft 21 journaled upon- 'the table. A clutch mechanism 22 is carried by the shaft 21v and is also connectedI with the shaft of ya speed reducer v23. kA pulley l '24 is mounted upon the shaft of the :speed reducer 23 iand a belt 25 isl trained varound the pulley 24 and also-around 'a pulley -26 mounted upon the shaft of a motor'27. The motor 27 4is vlocated under the table.f Thus,

" f meansvfare provided for drvingthe *wheels Y' 19"'and21, from lthe' motor 27..

" of ythe molds Wherebythefarticles lvvhichv are contained Within "the 'saicl".mol'ds arev A Sand hoppers28 and 29 are mountedupon the table and havetheir discharge ends lo. cated over the peripheral-portion of the plate 5 so that the moldsmay' passjsuccessively Vun'- ;derthez'said'hoppers. The hoppers 28 and 29 arespaced from eachjother. vGuides 30 Aand 31 are"mountedfupon the table at the.

opposite side edges of the vplate 5 and a bridge 32. is mounted for Vvr'n'ovement between said guides. Tamping members .v 33 and 34 are `carried by the bridge and'y are located above the molds of the plate 5, The tamping mem y'ber 33 isubetvveen the members 28 and 29, andthe tamping member 3 4 is located beyond one side of 'thehopper 29. A Vmarkingdevice 35 is located adjacent the edgel of the plate 'andfincludes apin '37 adapted to be`moved through the openings 36 provided. atthe sides marked or stamped. ,y The pinf lpasses through the'op'enings '36 when the Aplate 'is held at a state `of* .rest bythe pinf?, asfcherein-y beforedescribed, jand at the Y same time, the

tampinglmembers 33 enter the lIrioldsfiyhich are lcated'under them vandi the sand which' is'depo'sited into'the molds from thehop'pers is" t'amped'jor compacted.V tappingy mechaf Y msm-38 is mounted fupon the table' andV .cludesfaf'pinv39 '.ac'tuatedgby Va lever 40 andv Whi'chis adapted to strikeft'he 'edge'of-th'er plate 5va'nd loosen the lcores'in the molds'. An,V ejector' 41' is carried bythe bridgel32 and;` enters themolds successively 'afterthe cores. have v'been loosened therein and removes: the

cor'eslfrom the 'mold whereby' the' rcores fall through VVthe openings3 and'drop upon' the unloading itrayfg4. A, Abrush 42 is carried by lthe bridge 32 andentefsfthemolds after ,the coresl have been ejected therefrom and cleansV l `thesurfacesvof,themolds so Vthatthey4 arel kmade ready *tov receive additional charges n of j f' 143 arecarried'byfthe bridge member Y132 Vandfleve'rs 44 are fpivotedfupon the table" and oneVl endD of theV levers` are operatively "Connected vviththelovv'er end of the farms 43 by means of pinV and slot connections 45 of usual form. Eccentrics46 are mounted upon 1 f 48 surroundthe eccentrics and are connected by means of bars 49 Withthe ends of the le-V vvvers 44. As the shaftf47 is rotated, asvvill 'i a shaft v47 j ournaled upon the table andvstraps be hereinafter explained, the-eccentrics are turned aboutthe axis of the shaft, whereby 1 vthe levers 44 are rocked and thebridge 32 is :moved vertically inthe guides 30 vand the parts carried by the bridge are moved intovthe moldswhereby the sand isV tamped inthe tapped,- the cores are ejected and the molds are cleaned. A gear Wheel 50 is mounted onthe shaft 47 and meshes 4with a gearvvheel 51 mounted upona shaft 52; A gear vvhveel v53 is mounted upon the shaft 52 ."an'dvmeshes With-a gear Wheel 54 mountedupon vthe shaft 21, hereinbefore described; Thus,' means are vprovidedfor transmittingV rotary movementV from" the shaft 21 to the'shaft 47,V and through vmolds, the'cores are marked, the moldslare i* the connecting parts the bridge is raised and y lowered between the guides 30 and 31.V 1

From the foregoingdescription'of the rconstruc'tionvof. my improved apparatus, it Will be seen'thatI-have provided simple,y ineX pensive and eflicient means for carrying out the objects of myinvention and While-Ishave,k

particularly described the elements' bestVY adapted to perform thefunctions set 'forthgw it is obvious` thatvarious changes in for1n,

proportion andinffthe minor details of construction may be -resortedto Without.depart`l 'f the ingfrom the spirit 'or sacrificing any :of prlnciplesv of the invention.

Having4 thus described ther y invention,

What is claimedris:

1.` A1 core v-making machine comprisingfaj 'i tablehaving a top provided Withanop'ening, a plate ljournaledl upon the table` and 'hav-ing molds .adapted to `move over" the opening,Y hoppers `mounted upon the table,said molds adapted to move under the hoppers,a bridgeV if i adapted to move vertically and intermittentlyV over the plate, ltampers carried bythe bridge, I f

a core ejector carried "by, the bridge land meansforV actuatingrsaid bridge,frotatingfV said table and successively "operating" saidy t Y ,j l 115" Y l g machine"comprising-aff .table having atop provided .Withjanopeningf tampersland core ejector. Y

- 2. A core makin a plategjournaled upon'the table andjhaving' Y.

y i i moving said bridge and successively operating said tampers and core ejector. V 3. A core making machineL comprising a table having a top provided With anv opening, a'plate journaled` upon the table and having molds adapted to move over the opening, hoppers mounted upon the table, said molds adapted to move under the hoppers, a bridge adapted to intermittently move vertically over the plate, tampers carried by the bridge, a core ejector carried by the bridge,` a brush carried by the bridge and adapted to enterV themolds and means for rotating said plate, simultaneously moving said bridge and successively actuating said tampers, core ejector and brush. Y Y

4i. A core making machine comprising a table having a top provided With an opening, a plate journaled upon the table and having fb molds adapted to move over the opening,

hoppers mounted upon the table,'sa`id molds adapted to move under the hoppers, a bridge` adapted to intermittently move vertically over the plate, tampers carried by the bridge,

;- a core marker mounted upon the table, an

ejector carried by the bridge and means for n rotating said plate, simultaneously actuating said bridge vand successively operating said tampers, core marker and ejector.

5.' A core making machine comprising `a table having a top'provided With an opening, a plate' journaled upon the table and having molds adapted to move over the opening,

hoppers mounted upon the table, said molds adapted to move under the hoppers, a bridge vertically and intermittently movable over ,ses 3 an opening, a plate journaled upon said table and rotatable with respect thereto, said table having molds therein adapted to move over the openings, means for rotating saidplate, means cooperating With the peripheral edge .of said plate to retainV the same in locked and still position at predetermined times, hoppers mounted upon said table, said molds being adapted to move under said hoppers,v standards supported on said table, a vbridge vertically movable on said standards, means cooperating With the rotating means for said plate to intermittently move said bridge withl respect to theplate, tampers carried by the bridge cooperating with the core and the mold, a core marker mounted upon the table adapted to enter the molds, said marker being operable-from the same means rotating said v plate, a tapping device adapted to contact with the periphery-of the plate, said tapping device being operable from the same means rotating said plate, a core ejector carried by the bridge and a brush carried by the bridgeV adapted to enter the molds, as and for the purposes described.

' In -testimony whereof I aiiiX my signature. -9

`RALPH s. oionno.

said plate, tampers carried by the bridge, a

tapping mechanism mounted upon the table and adapted to strike the periphery of the plate, a core ejector carried by the bridge and means orrotating said plate, simultaneously moving said bridge, and successively actuating said tampers, tapping mechanism and, core ejector'. 4 Y

G. A core making machine comprising a table having a top provided With an opening,

a plate journaled upon the table and havlng Y molds adaptedto move over the opening, hoppers mounted upon the table, said molds adapted to move under the hoppers, a bridge Y vertically and intermittently movable overv said plate, a core marker mounted upon theV table and adapted to enter the molds, a tapping device mounted upon lthe table and i adapted to strike the periphery of the plate, means cooperating with ,the'periphery oftheV table forholding `said table at rest at inter-r` vals, a core ejector carried by the bridge and a brush carried by the bridge adapted to enter the molds and means for rotating said plate, simultaneously moving said bridge and suc Vv cessively actuating said core marker, tapping device, core ejector and brush.

7. In a core making'machine of theclass described, a table having a top provided with 

